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Subject (Region)
- Abram (Tex.)1
- Acapulco, Mexico1
- Africa2
- Africa, Southern2
- Agua Prieta (Sonora)1
- Agua Prieta (Sonora, Mexico)1
- Aguascalientes (Mexico)1
- Akansas1
- Alabama2
- Alamo (San Antonio, Tex.)2
- Alaska6
- Alaska Territory (1912-1959)5
- Alaska, Department and District of (1867-1912)2
- Albuquerque8
- Albuquerque (N.M.)6
- Algeria1
- All American Canal1
- All American Canal (Calif.)1
- Alpine2
- Altar Valley3